Which one can not inhibit protein synthesis?
A. penicillins,
B. gentamicin,
C. tetracyclines
D. streptomycin.
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Which one is not the advantage of Semisynthetic antibioticscomparing to naturally occurring antibiotics?
A. more effective,
B. much cheaper;
C. longer lasting,
D. easier to administer
The key to successful chemotherapy against microbes is:______.
A. selective toxicity;
B. structure of an antibiotic;
C. Molecular size;
D. the spectrum of action
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